Chapter 7, Problem 28E

(a)

Interpretation Introduction

To determine: The explanation for the given variations in atomic or ionic radii in ${\text{I}}^{-}>\text{I}>{\text{I}}^{+}$ .

(b)

Interpretation Introduction

To determine: The explanation for the given variations in atomic or ionic radii in ${\text{Ca}}^{2+}>{\text{Mg}}^{2+}>{\text{Be}}^{2+}$ .

(c)

Interpretation Introduction

To determine: The explanation for the given variations in atomic or ionic radii in $\text{Fe}>{\text{Fe}}^{2+}>{\text{Fe}}^{3+}$ .